{"id":"F2006B08768","name":"AD/DAUPHIN/56 - SIREN Cargo Hooks","slug":"ad-dauphin-56-siren-cargo-hooks","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52083,"registerId":"commonwealth-F2006B08768-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nEurocopter SA 360 and SA 365 (Dauphin) Series Helicopters","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/56 SIREN Cargo Hooks 3/2002 D","sectionType":"part","heading":"AD/DAUPHIN/56 SIREN Cargo Hooks 3/2002 DM","content":"# AD/DAUPHIN/56 SIREN Cargo Hooks 3/2002 DM\n\nApplicability: Model AS 365 helicopters, versions N, N1, N2, and N3 fitted with SIREN cargo hooks part number AS-21-5-7.\n\nRequirement: 1. Cargo hooks part number AS-21-5-7 with amendment B:\n\nAction in accordance with paragraph 2.B of Eurocopter Alert Telex No. 05.00.41.\n\n    2. Cargo hooks part number AS-21-5-7 without amendment B:\n\n    Action in accordance with paragraph 2.A of Eurocopter Alert Telex No. 05.00.41.\n\n    b. Action in accordance with paragraph 2.B of Eurocopter Alert Telex No. 05.00.41.\n\nNote: DGAC AD 2002-044(A) refers.\n\nCompliance: 1. Before the next flight after 6 February 2002, and before the first flight of the day with underslung load.\n\n    2.a. Before the next flight with underslung load after 6 February 2002.\n\n    2.b. Before the first flight of the day with underslung load.\n\nThis Airworthiness Directive becomes effective on 6 February 2002.\n\nBackground: The DGAC requires certain actions to prevent inadvertent cargo load release due to cargo hook locking catch corrosion combined with in-flight vibrations.\n\n![Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 30 January 2002\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 6 February 2002.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It targets a specific safety defect in a specific part on specific helicopter models. There is no evidence of scope creep; the directive remains focused on the original safety issue (cargo hook corrosion) without expanding to unrelated systems or aircraft types."},"complexity_factors":["Short document (approximately 300 words)","Only 4 defined elements: specific helicopter models, specific part number, and two amendment states","Simple conditional structure (two branches: with/without amendment B)","Cross-reference to external document (Eurocopter Alert Telex 05.00.41) — the actual technical instructions are not included in the AD itself","Reference to French aviation authority (DGAC) AD for context","Minor formatting irregularities in the source text (duplicate headings, image placeholders)"],"plain_english_summary":"This AD requires operators of AS365 Dauphin N-series helicopters fitted with SIREN AS-21-5-7 cargo hooks to inspect and repair the hook locking catch per Eurocopter instructions. Corrosion plus vibration can let underslung loads release unexpectedly. Affected helicopters must carry out the specified corrective actions before the next underslung-load flight and perform daily pre-flight checks when carrying underslung loads. It prevents dropped loads, ground injuries, property damage, and helicopter loss of control."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD adopts and enforces the actions set out by Eurocopter and the DGAC for SIREN cargo hooks on AS365 N-series helicopters. It does not expand or narrow the population affected beyond the described models and part number; compliance actions and timings mirror the referenced alert and DGAC AD."},"complexity_factors":["Narrow applicability: targets a specific helicopter model range (AS365 N-series) and a single part number (AS-21-5-7).","Procedural dependency: required actions are given by Eurocopter Alert Telex No. 05.00.41 (external document not reproduced in the AD).","Conditional rules: different mandatory actions depending on whether the hook bears 'amendment B' (paragraphs 2.A vs 2.B).","Strict timing: immediate/near-term compliance (before next flight or before first flight with underslung load) increases operational disruption and scheduling pressure.","Cross-reference to foreign regulator (DGAC AD 2002-044(A)) adds reliance on overseas certification findings."],"plain_english_summary":"This Airworthiness Directive forces operators of Eurocopter AS365 N/N1/N2/N3 helicopters fitted with SIREN cargo hooks (part AS-21-5-7) to inspect and carry out corrective actions in line with Eurocopter Alert Telex No. 05.00.41 to prevent inadvertent underslung-load release. It prescribes different actions depending on the hook amendment status and sets mandatory timing (e.g. before the next flight and before flights with underslung loads). Operators must perform and pay for the inspections/repairs; CASA issued it under CAR 1998 subreg 39.1(1)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-56-siren-cargo-hooks","history":"/api/acts/ad-dauphin-56-siren-cargo-hooks/history","analysis":"/api/acts/ad-dauphin-56-siren-cargo-hooks/analysis","conflicts":"/api/acts/ad-dauphin-56-siren-cargo-hooks/conflicts","importantCases":"/api/acts/ad-dauphin-56-siren-cargo-hooks/important-cases","documents":"/api/acts/ad-dauphin-56-siren-cargo-hooks/documents"}}